Film, Darkroom & Historic Processes
60 terms · page 3 of 3
Selenium Toning
A treatment that converts silver to silver selenide, deepening blacks and giving prints a subtle cool or purplish shift.
Film, Darkroom & Historic ProcessesSepia Toning
A chemical treatment that converts a print's metallic silver into silver sulphide, producing warm brown tones.
Film, Darkroom & Historic ProcessesSilver Halide
The light-sensitive compounds — silver bromide, chloride and iodide — that form the active ingredient of photographic emulsions.
Film, Darkroom & Historic ProcessesSolarisation
A partial tonal reversal produced by briefly exposing a print or negative to light part-way through development.
Film, Darkroom & Historic ProcessesSplit-grade Printing
Exposing a variable-contrast print twice, once through a soft filter and once through a hard one, to control highlights and shadows…
Film, Darkroom & Historic ProcessesStand Development
A technique using very dilute developer and almost no agitation over a long period, typically an hour.
Film, Darkroom & Historic ProcessesStop Bath
A mildly acidic solution used after development to halt the process immediately.
Film, Darkroom & Historic ProcessesT-grain Emulsion
An emulsion using flat, tabular silver crystals that present a larger surface area to light for a given volume.
Film, Darkroom & Historic ProcessesTest Strip
A piece of paper exposed in bands at increasing times, used to determine the correct exposure for a print.
Film, Darkroom & Historic ProcessesTintype
A wet collodion positive made on a thin sheet of blackened iron, producing a cheap, durable, unique image.
Film, Darkroom & Historic ProcessesVariable Contrast Paper
Paper carrying two emulsions of different contrast and colour sensitivity, whose grade is set by the colour of the enlarging light.
Film, Darkroom & Historic ProcessesWet Plate Collodion
A process in which a glass plate is coated with collodion, sensitised, exposed and developed while still wet.